OK forget all of the other joke apps that are available. Most just focus on a particular kind of joke which, while nice, can get boring rather easily. This app contains everything from one-liners to page long jokes to your mama(even chuck norris/redneck/my life sucks and more). I cannot tell you how many more hours i have stayed awake at night just reading all of this silly jokes. Personal favorite is the one liner category as there is never a shortage of good usable material to pull on your friends(or enemies if you want to get nasty). All it takes is one and your hooked for at least a good 20 minutes. Good luck getting that time back.
some are a bit old, but I guess it's hard to come up with new ones. I love the vamirize me app, and some other photo apps with face-recognition. There are some hilarious ones ! 